Where is that new retopo feature?
Several options available. You can take a look at the Instant Field Aligned Meshes for remeshing (http://igl.ethz.ch/projects/instant-meshes/), Mira and Mifth Tools (http://blenderartists.org/forum/showthread.php?366107-MiraTools) and there is the Iceking Tools.

I have the paid addon that you are referring to, retopoflow, and it is worth it - but if you search online you will find the github page as well anyway since it is GPL if you want to try that, too.